文献类型：期刊文献

中文题名：MBA接枝聚丙烯微孔膜的亲水改性研究

英文题名：Surface hydrophilic modification polypropylene microporous membrane by grafting N,N'-methylenebisacrylamide

作者：李承斌[1];尹艳红[2];王辉[3];董红玉[1];曹朝霞[3];谷继峰[2];杨书廷[2]

第一作者：李承斌

机构：[1]河南机电高等专科学校材料工程系;[2]河南省师范大学化学与环境科学学院;[3]新乡学院化学与化工学院

第一机构：河南机电高等专科学校材料工程系,河南新乡453002

年份：2010

卷号：22

期号：11

起止页码：1371-1375

中文期刊名：化学研究与应用

外文期刊名：Chemical Research and Application

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：河南省高校青年骨干教师资助计划;省重点科技攻关(082102270048)

语种：中文

中文关键词：表面吸附法;聚丙烯微孔膜;表面亲水改性;牛血清白蛋白静态吸附;接触角

外文关键词：physisorbed initiator; polypropylene（PP） ; microporous membrane; surface hydrophilic modification; BSA adsorption; contact angle

摘要：运用表面吸附法使聚丙烯微孔膜表面覆盖上引发剂,然后浸入氮氮亚甲基双丙烯酰胺(MBA)水溶液在一定温度下进行接枝反应。研究了引发剂用量,单体浓度,反应时间与温度对接枝率的影响,并用红外、扫描电镜对聚丙烯膜接枝前后的微孔膜进行了表征。同时对膜的亲水性和水通量进行了测试,发现其亲水性能有了极大的提高,其中接枝改性后接触角与未接枝的相比降低了90°以上,吸水率最多提高了12%,但是水通量有所下降。还对改性微孔膜的抗污染性能进行了探究。
Microporous hydrophobic polypropylene （PP） membranes were modified by the chemical modification technique to impart permanent hydrophilicity.Surface modification of microporous polypropylene membrane was performed by grafting polymerization of N,N＇-Methylenebisacrylamide （MBA） using physisorbed initiators method.The factors effecting the grafting degree such as monomer concentration,reaction temperature,reaction time and initiator concentration were determined.The optimal conditions：initiator concentrtion 15% （w/V）,MBA monomer concentration 0.2mol/L,reaction tempreture 60 degree Centigrade,reaction time less than 4h.The morphological and microstructure changes of the membrane surface were confirmed by fourier transform infrared spectroscopy （FTIR）,scanning electron microscopy （SEM）.The pure water contact angle,protein adsorbed amount,water flux and water swelling percentage were studied as well.The results indicate that the pore size and porosity of the grafted membrane were reduced according to the increase of grafting degree,the static contact angle of pure water on the grafted membrane decreased from 101°to 9°with the increase of grafting degree from 0% to 9.55%.The amount of bovine serum albumin（BSA） adsorbed on the grafted membrane was smaller than the virgin membrane,it decreased about 67.3% than the virgin PP membrane when the grafting degree was 9.26%.The hydrophilic and antifouling property of the grafted membrane were improved highly.